/*
 *
 * This file is part of QMapControl,
 * an open-source cross-platform map widget
 *
 * Copyright (C) 2007 - 2008 Kai Winter
 * Copyright (C)        2014 Mattes Jaehne
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with QMapControl. If not, see <http://www.gnu.org/licenses/>.
 *
 * original software by Kai Winter
 * Contact e-mail: kaiwinter@gmx.de
 * Program URL   : http://qmapcontrol.sourceforge.net/
 *
 * modified to use Google Static Maps API V2  by
 *     Mattes Jaehne <mattes@dev.uavp.ch>
 * for
 *     NGOS - The Next Generation multicopter OS
 * http://ng.uavp.ch
 *
 */

#ifndef GOOGLEAPIMAPADAPTER_H
#define GOOGLEAPIMAPADAPTER_H

#include "qmapcontrol_global.h"
#include "tilemapadapter.h"

namespace qmapcontrol
{
class QMAPCONTROL_EXPORT googleApiMapadapter : public TileMapAdapter
{
    Q_OBJECT
public:
    enum layerType
    {
        layerType_ROADMAP
        = 0, // displays the default road map view. This is the default map type.
        layerType_SATELLITE, // displays Google Earth satellite images
        layerType_HYBRID, // displays a mixture of normal and satellite views
        layerType_TERRAIN // displays a physical map based on terrain information
    };

    enum apiType
    {
        GoogleMapsAPI = 0,
        GoogleMapsForBusinessesAPI
    };

    googleApiMapadapter(layerType qMapType = layerType_ROADMAP,
                        apiType qApiType = GoogleMapsAPI, QString qApiKey = "",
                        QString qApiClientID = "",
                        QString qServerAddress = "maps.googleapis.com");
    virtual ~googleApiMapadapter();

    virtual QPoint coordinateToDisplay(const QPointF &) const;
    virtual QPointF displayToCoordinate(const QPoint &) const;

    QString getHost() const;
    void setKey(QString apiKey);
    void setMapLayerType(layerType qMapType = layerType_ROADMAP);

protected:
    virtual void zoom_in();
    virtual void zoom_out();
    virtual QString query(int x, int y, int z) const;
    virtual bool isValid(int x, int y, int z) const;

    virtual QString signURL(const QString &qURL, const QString &qCryptoKey) const;

private:
    QString typeToString(layerType qLayerType);
    virtual QString getQ(qreal longitude, qreal latitude, int zoom) const;
    qreal getMercatorLatitude(qreal YCoord) const;
    qreal getMercatorYCoord(qreal lati) const;

    qreal mCoord_per_x_tile;
    qreal mCoord_per_y_tile;

    QString mApiKey;
    QString mApiClientID;
    apiType mApiType;
    QString mMapLayerType;
};
}

#endif // GOOGLEAPIMAPADAPTER_H
